<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">

<!-- 
	Copyright (C) 2007, 2008, 2009, 2010, 2011. PARP Research Group.
	<http://perception.inf.um.es>
	University of Murcia, Spain.

	This file is part of the QVision library.

	QVision is free software: you can redistribute it and/or modify
	it under the terms of the GNU Lesser General Public License as
	published by the Free Software Foundation, version 3 of the License.

	QVision is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
	GNU Lesser General Public License for more details.

	You should have received a copy of the GNU Lesser General Public
	License along with QVision. If not, see <http://www.gnu.org/licenses/>.
-->

<html><head><meta http-equiv="content-Type" content="text/html;charset=UTF-8">
<title>QVision: Qt&#39;s Image, Video and Computer Vision Library</title>
<meta name="title" content="QVision" />
<meta name="dc.title" content="QVision" />
<meta name="url" content="http://perception.inf.um.es/QVision" />
<meta name="author" content="PARP Research Group - http://perception.inf.um.es" />
<meta name="revisit-after" content="30 DAYS"/>
<meta name="robots" content="index,follow"/>
<meta name="classification" content="*">
<meta name="rating" content="Safe For Kids">
<meta name="distribution" content="GLOBAL"/>
<meta name="description" content="Qt's Image, Video and Computer Vision Library"/>
<meta name="page-topic" content="Computer Vision research and prototype programming"/>
<meta name="geo.country" content="ES" />

<!--
Keywords:
By license:		open source, gnu, lgpl, gpl, free
By theme:		computer vision, image processing, robotics, programming, source, development
By usage:		library, toolkit, framework, prototype, application
By programming specs:	object oriented, c++, block programming, reusability, gui, graphical, parallel computing, high performance, GPU, prototyping
Interoperability with:	Qt, GSL, GNU Scientific library, OpenCV, CGAL, QWT, CUDA, mplayer, IPP, Intel Image Performance Primitives, blas, lapack
Functionallity:		image features, matrix algebra, projective geometry, mser, function minimization, function optimization, canny operator, harris operator, corner detection, performance evaluation, cpu usage, graphical interface
Main data-types:	matrix, vector, tensor, quaternion, image, polyline
Video sources:		webcam, camera, stream
Devices:		embedded, desktop computer, laptop, mini-laptop
Authors:		PARP research group. University of Murcia, Spain.
-->

<meta name="keywords" content="augmented reality, sfm, structure from motion, open source, gnu, lgpl, gpl, free, computer vision, image processing, robotics, programming, source, development, library, toolkit, framework, prototype, application, object oriented, c++, block programming, reusability, gui, graphical, parallel computing, high performance, GPU, prototyping, Qt, GSL, GNU Scientific library, OpenCV, CGAL, QWT, CUDA, mplayer, IPP, Intel Image Performance Primitives, blas, lapack, image features, matrix algebra, projective geometry, mser, function minimization, function optimization, canny operator, harris operator, corner detection, performance evaluation, cpu usage, graphical interface, matrix, vector, tensor, quaternion, image, polyline, webcam, camera, stream, embedded, desktop computer, laptop, mini-laptop, University of Murcia, Spain, PARP research group, vision por computador"/>
<meta http-equiv="keywords" content="augmented reality, sfm, structure from motion, open source, gnu, lgpl, gpl, free, computer vision, image processing, robotics, programming, source, development, library, toolkit, framework, prototype, application, object oriented, c++, block programming, reusability, gui, graphical, parallel computing, high performance, GPU, prototyping, Qt, GSL, GNU Scientific library, OpenCV, CGAL, QWT, CUDA, mplayer, IPP, Intel Image Performance Primitives, blas, lapack, image features, matrix algebra, projective geometry, mser, function minimization, function optimization, canny operator, harris operator, corner detection, performance evaluation, cpu usage, graphical interface, matrix, vector, tensor, quaternion, image, polyline, webcam, camera, stream, embedded, desktop computer, laptop, mini-laptop, University of Murcia, Spain, PARP research group, vision por computador"/>
<meta http-equiv="pragma" content="no-cache"/>
<meta http-equiv="title" content="QVision"/>
<link href="doxygen.css" rel="stylesheet" type="text/css" />
<link href="tabs.css" rel="stylesheet" type="text/css" />
<link rel="shortcut icon" href="favicon.ico" />
</head><body>

<table width="100%"><tr>
	<td><a href="http://perception.inf.um.es/"><img src="parp.png" border="0" /> <big>PARP Research Group</big></a></td>
	<td align="right"><a href="http://www.um.es/"><big>Universidad de Murcia</big> <img src="um.png" border="0" /></a></td>
</tr></table>

<hr /><br />

<table width="95%" align="center"><tr><td>

<!-- Generated by Doxygen 1.6.3 -->
<script type="text/javascript"><!--
var searchBox = new SearchBox("searchBox", "search",false,'Search');
--></script>
<div class="navigation" id="top">
  <div class="tabs">
    <ul>
      <li><a href="index.html"><span>Main&nbsp;Page</span></a></li>
      <li><a href="pages.html"><span>Related&nbsp;Pages</span></a></li>
      <li><a href="modules.html"><span>Modules</span></a></li>
      <li><a href="annotated.html"><span>Classes</span></a></li>
      <li class="current"><a href="files.html"><span>Files</span></a></li>
      <li>
        <div id="MSearchBox" class="MSearchBoxInactive">
          <form id="FSearchBox" action="search.php" method="get">
            <img id="MSearchSelect" src="search/search.png" alt=""/>
            <input type="text" id="MSearchField" name="query" value="Search" size="20" accesskey="S" 
                   onfocus="searchBox.OnSearchFieldFocus(true)" 
                   onblur="searchBox.OnSearchFieldFocus(false)"/>
          </form>
        </div>
      </li>
    </ul>
  </div>
  <div class="tabs">
    <ul>
      <li><a href="files.html"><span>File&nbsp;List</span></a></li>
      <li><a href="globals.html"><span>File&nbsp;Members</span></a></li>
    </ul>
  </div>
<h1>examples/image-tests/image-tests.cpp</h1><a href="image-tests_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*</span>
<a name="l00002"></a>00002 <span class="comment"> *      Copyright (C) 2011, 2012. PARP Research Group.</span>
<a name="l00003"></a>00003 <span class="comment"> *      &lt;http://perception.inf.um.es&gt;</span>
<a name="l00004"></a>00004 <span class="comment"> *      University of Murcia, Spain.</span>
<a name="l00005"></a>00005 <span class="comment"> *</span>
<a name="l00006"></a>00006 <span class="comment"> *      This file is part of the QVision library.</span>
<a name="l00007"></a>00007 <span class="comment"> *</span>
<a name="l00008"></a>00008 <span class="comment"> *      QVision is free software: you can redistribute it and/or modify</span>
<a name="l00009"></a>00009 <span class="comment"> *      it under the terms of the GNU Lesser General Public License as</span>
<a name="l00010"></a>00010 <span class="comment"> *      published by the Free Software Foundation, version 3 of the License.</span>
<a name="l00011"></a>00011 <span class="comment"> *</span>
<a name="l00012"></a>00012 <span class="comment"> *      QVision is distributed in the hope that it will be useful,</span>
<a name="l00013"></a>00013 <span class="comment"> *      but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
<a name="l00014"></a>00014 <span class="comment"> *      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the</span>
<a name="l00015"></a>00015 <span class="comment"> *      GNU Lesser General Public License for more details.</span>
<a name="l00016"></a>00016 <span class="comment"> *</span>
<a name="l00017"></a>00017 <span class="comment"> *      You should have received a copy of the GNU Lesser General Public</span>
<a name="l00018"></a>00018 <span class="comment"> *      License along with QVision. If not, see &lt;http://www.gnu.org/licenses/&gt;.</span>
<a name="l00019"></a>00019 <span class="comment"> */</span>
<a name="l00020"></a>00020 
<a name="l00024"></a>00024 
<a name="l00038"></a>00038 <span class="preprocessor">#include &lt;iostream&gt;</span>
<a name="l00039"></a>00039 <span class="preprocessor">#include &lt;QVImage&gt;</span>
<a name="l00040"></a>00040 <span class="preprocessor">#include &lt;QDir&gt;</span>
<a name="l00041"></a>00041 <span class="preprocessor">#include &lt;<a class="code" href="qvip_2qvimageio_8h.html" title="File from the QVision library.">qvimageio.h</a>&gt;</span>
<a name="l00042"></a>00042 
<a name="l00043"></a>00043 <span class="keywordtype">void</span> doTests(<span class="keyword">const</span> <a class="code" href="classQVImage.html">QVImage&lt;uChar, 3&gt;</a> &amp;image)
<a name="l00044"></a>00044         {
<a name="l00045"></a>00045         <span class="comment">// -------------------------------------------------</span>
<a name="l00046"></a>00046         <span class="comment">// Test: QImage convert</span>
<a name="l00047"></a>00047         <span class="keyword">const</span> <a class="code" href="classQVImage.html">QVImage&lt;uChar, 3&gt;</a> imageCopy = image;
<a name="l00048"></a>00048         <a class="code" href="classQVImage.html">QVImage&lt;uChar, 3&gt;</a> imageCopy2;
<a name="l00049"></a>00049         imageCopy2 = image;
<a name="l00050"></a>00050 
<a name="l00051"></a>00051         Q_ASSERT_X(image == imageCopy,  <span class="stringliteral">&quot;test QImage convert&quot;</span>, <span class="stringliteral">&quot;QVImage copy 1&quot;</span>);
<a name="l00052"></a>00052         Q_ASSERT_X(image == imageCopy2, <span class="stringliteral">&quot;test QImage convert&quot;</span>, <span class="stringliteral">&quot;QVImage copy 2&quot;</span>);
<a name="l00053"></a>00053 
<a name="l00054"></a>00054         <span class="keywordflow">if</span> (image.<a class="code" href="classQVImage.html#ad0f2758702ee4d96d538aa353ae81bb7" title="Overloaded function from QVGenericImage::getCols().">getCols</a>() &gt; 50 and image.<a class="code" href="classQVImage.html#a55e71ad628f450ee82bb4226cb62ec17" title="Overloaded function from QVGenericImage::getRows().">getRows</a>() &gt; 50)
<a name="l00055"></a>00055                 {
<a name="l00056"></a>00056                 imageCopy2.<a class="code" href="classQVGenericImage.html#a2e01c2584cee10559bf1aac1ca7e287b" title="Set the region of interest of the image.">setROI</a>(QRect(QPoint(10,10), QPoint(50, 50)));
<a name="l00057"></a>00057                 imageCopy2.<a class="code" href="classQVGenericImage.html#aa3f37d1f7d2271b52c69c8034be8ddac" title="Set anchor point of the image.">setAnchor</a>(QPoint(4,4));
<a name="l00058"></a>00058 
<a name="l00059"></a>00059                 <span class="keyword">const</span> <a class="code" href="classQVImage.html">QVImage&lt;uChar, 3&gt;</a> imageCopy3 = imageCopy2;
<a name="l00060"></a>00060                 <a class="code" href="classQVImage.html">QVImage&lt;uChar, 3&gt;</a> imageCopy4;
<a name="l00061"></a>00061                 imageCopy4 = imageCopy2;
<a name="l00062"></a>00062 
<a name="l00063"></a>00063                 Q_ASSERT_X(image != imageCopy3, <span class="stringliteral">&quot;test QImage convert&quot;</span>, <span class="stringliteral">&quot;QVImage copy 3&quot;</span>);
<a name="l00064"></a>00064                 Q_ASSERT_X(image != imageCopy4, <span class="stringliteral">&quot;test QImage convert&quot;</span>, <span class="stringliteral">&quot;QVImage copy 4&quot;</span>);
<a name="l00065"></a>00065                 Q_ASSERT_X(imageCopy3.<a class="code" href="classQVGenericImage.html#a55132f8ba36904516dcf384039c670e4" title="Method for obtaining actual region of interest for image.">getROI</a>() == QRect(QPoint(10,10), QPoint(50, 50)), <span class="stringliteral">&quot;test QImage convert&quot;</span>, <span class="stringliteral">&quot;QVImage copy 5&quot;</span>);
<a name="l00066"></a>00066                 Q_ASSERT_X(imageCopy4.<a class="code" href="classQVGenericImage.html#a55132f8ba36904516dcf384039c670e4" title="Method for obtaining actual region of interest for image.">getROI</a>() == QRect(QPoint(10,10), QPoint(50, 50)), <span class="stringliteral">&quot;test QImage convert&quot;</span>, <span class="stringliteral">&quot;QVImage copy 6&quot;</span>);
<a name="l00067"></a>00067                 Q_ASSERT_X(imageCopy3.<a class="code" href="classQVGenericImage.html#a9fede2a177fed58d69d9d13e93cd38b6" title="Obtains actual anchor point for the image.">getAnchor</a>() == QPoint(4,4), <span class="stringliteral">&quot;test QImage convert&quot;</span>, <span class="stringliteral">&quot;QVImage copy 7&quot;</span>);
<a name="l00068"></a>00068                 Q_ASSERT_X(imageCopy4.<a class="code" href="classQVGenericImage.html#a9fede2a177fed58d69d9d13e93cd38b6" title="Obtains actual anchor point for the image.">getAnchor</a>() == QPoint(4,4), <span class="stringliteral">&quot;test QImage convert&quot;</span>, <span class="stringliteral">&quot;QVImage copy 8&quot;</span>);
<a name="l00069"></a>00069                 }
<a name="l00070"></a>00070 
<a name="l00071"></a>00071         <span class="comment">// -------------------------------------------------</span>
<a name="l00072"></a>00072         <span class="comment">// Test: QImage convert.</span>
<a name="l00073"></a>00073         <span class="keyword">const</span> QImage qImage = image;
<a name="l00074"></a>00074         QImage qImage2;
<a name="l00075"></a>00075         qImage2 = image;
<a name="l00076"></a>00076 
<a name="l00077"></a>00077         <span class="keyword">const</span> <a class="code" href="classQVImage.html">QVImage&lt;uChar, 3&gt;</a> fromQImage = qImage,
<a name="l00078"></a>00078                                                         fromQImage2 = qImage2;
<a name="l00079"></a>00079 
<a name="l00080"></a>00080         Q_ASSERT_X(image == fromQImage, <span class="stringliteral">&quot;test QImage convert&quot;</span>, <span class="stringliteral">&quot;QImage convert 1&quot;</span>);
<a name="l00081"></a>00081         Q_ASSERT_X(image == fromQImage2, <span class="stringliteral">&quot;test QImage convert&quot;</span>, <span class="stringliteral">&quot;QImage convert 2&quot;</span>);
<a name="l00082"></a>00082 
<a name="l00083"></a>00083         <span class="comment">// -------------------------------------------------</span>
<a name="l00084"></a>00084         <span class="comment">// Test: QImage convert.</span>
<a name="l00085"></a>00085         IplImage *iplImage = image;
<a name="l00086"></a>00086         <span class="keyword">const</span> <a class="code" href="classQVImage.html">QVImage&lt;uChar, 3&gt;</a> fromIplImage = iplImage;
<a name="l00087"></a>00087         cvReleaseImage(&amp;iplImage);
<a name="l00088"></a>00088 
<a name="l00089"></a>00089         Q_ASSERT_X(image == fromIplImage, <span class="stringliteral">&quot;test QImage convert&quot;</span>, <span class="stringliteral">&quot;IplImage convert&quot;</span>);
<a name="l00090"></a>00090 
<a name="l00091"></a>00091         <span class="comment">// -------------------------------------------------</span>
<a name="l00092"></a>00092         <span class="comment">// Test: Image channel splitting.</span>
<a name="l00093"></a>00093         <span class="keyword">const</span> <a class="code" href="classQVImage.html">QVImage&lt;uChar&gt;</a>    channelR = image(0),
<a name="l00094"></a>00094                                                         channelG = image(1),
<a name="l00095"></a>00095                                                         channelB = image(2);
<a name="l00096"></a>00096 
<a name="l00097"></a>00097         <span class="keyword">const</span> <a class="code" href="classQVImage.html">QVImage&lt;uChar, 3&gt;</a> imageRGB(channelR, channelG, channelB);
<a name="l00098"></a>00098         Q_ASSERT_X(image == imageRGB, <span class="stringliteral">&quot;test QImage channel selection&quot;</span>, <span class="stringliteral">&quot;Image channel splitting test 1&quot;</span>);
<a name="l00099"></a>00099 
<a name="l00100"></a>00100         <span class="keyword">const</span> <a class="code" href="classQVImage.html">QVImage&lt;uChar, 3&gt;</a> imageBRG(image(2), image(0), image(1));
<a name="l00101"></a>00101         <span class="keyword">const</span> <a class="code" href="classQVImage.html">QVImage&lt;uChar, 3&gt;</a> imageRGB2(imageBRG(1), imageBRG(2), imageBRG(0));
<a name="l00102"></a>00102         Q_ASSERT_X(image == imageRGB2, <span class="stringliteral">&quot;test QImage channel selection&quot;</span>, <span class="stringliteral">&quot;Image channel splitting test 2&quot;</span>);
<a name="l00103"></a>00103 
<a name="l00104"></a>00104         <span class="comment">// -------------------------------------------------</span>
<a name="l00105"></a>00105         <span class="comment">// Test: Image conversion to BW.</span>
<a name="l00106"></a>00106         <a class="code" href="classQVImage.html">QVImage&lt;uChar&gt;</a>  imageBW = image;
<a name="l00107"></a>00107         <span class="keyword">const</span> <a class="code" href="classQVImage.html">QVImage&lt;uChar,3&gt;</a>  imageBWRGB = imageBW;
<a name="l00108"></a>00108 
<a name="l00109"></a>00109         Q_ASSERT_X(imageBWRGB(0) == imageBWRGB(1), <span class="stringliteral">&quot;test QImage conversion to BW&quot;</span>, <span class="stringliteral">&quot;First channel of BW image is not equal to second.&quot;</span>);
<a name="l00110"></a>00110         Q_ASSERT_X(imageBWRGB(1) == imageBWRGB(2), <span class="stringliteral">&quot;test QImage conversion to BW&quot;</span>, <span class="stringliteral">&quot;Second channel of BW image is not equal to third.&quot;</span>);
<a name="l00111"></a>00111 
<a name="l00112"></a>00112         imageBW = imageBWRGB;
<a name="l00113"></a>00113         <span class="comment">// This test FAILS!</span>
<a name="l00114"></a>00114         <span class="comment">//Q_ASSERT_X(imageBW == imageBWRGB(0), &quot;test QImage conversion to BW&quot;, &quot;Last conversion to BW failed.&quot;);</span>
<a name="l00115"></a>00115 
<a name="l00116"></a>00116         <span class="comment">// -------------------------------------------------</span>
<a name="l00117"></a>00117         <span class="comment">// Test: Type conversions</span>
<a name="l00118"></a>00118         <span class="keyword">const</span> <a class="code" href="classQVImage.html" title="Image representation class for the QVision.">QVImage&lt;sFloat,3&gt;</a> sFloatImage = image;
<a name="l00119"></a>00119         <span class="keyword">const</span> <a class="code" href="classQVImage.html">QVImage&lt;uChar,3&gt;</a>  sFloatImageOrig = sFloatImage;
<a name="l00120"></a>00120         Q_ASSERT_X(image == sFloatImage, <span class="stringliteral">&quot;test type conversion&quot;</span>, <span class="stringliteral">&quot;Conversion with type sFloat failed.&quot;</span>);
<a name="l00121"></a>00121 
<a name="l00122"></a>00122         <span class="keyword">const</span> <a class="code" href="classQVImage.html" title="Image representation class for the QVision.">QVImage&lt;sChar,3&gt;</a>  sCharImage = image;
<a name="l00123"></a>00123         <span class="keyword">const</span> <a class="code" href="classQVImage.html">QVImage&lt;uChar,3&gt;</a>  sCharImageOrig = sCharImage;
<a name="l00124"></a>00124         Q_ASSERT_X(image == sCharImage, <span class="stringliteral">&quot;test type conversion&quot;</span>, <span class="stringliteral">&quot;Conversion with type sChar failed.&quot;</span>);
<a name="l00125"></a>00125 
<a name="l00126"></a>00126         <span class="keyword">const</span> <a class="code" href="classQVImage.html" title="Image representation class for the QVision.">QVImage&lt;sInt,3&gt;</a>   sIntImage = image;
<a name="l00127"></a>00127         <span class="keyword">const</span> <a class="code" href="classQVImage.html">QVImage&lt;uChar,3&gt;</a>  sIntImageOrig = sIntImage;
<a name="l00128"></a>00128         Q_ASSERT_X(image == sIntImage, <span class="stringliteral">&quot;test type conversion&quot;</span>, <span class="stringliteral">&quot;Conversion with type sInt failed.&quot;</span>);
<a name="l00129"></a>00129 
<a name="l00130"></a>00130         <span class="keyword">const</span> <a class="code" href="classQVImage.html" title="Image representation class for the QVision.">QVImage&lt;uInt,3&gt;</a>   uIntImage = image;
<a name="l00131"></a>00131         <span class="keyword">const</span> <a class="code" href="classQVImage.html">QVImage&lt;uChar,3&gt;</a>  uIntImageOrig = uIntImage;
<a name="l00132"></a>00132         Q_ASSERT_X(image == uIntImage, <span class="stringliteral">&quot;test type conversion&quot;</span>, <span class="stringliteral">&quot;Conversion with type uInt failed.&quot;</span>);
<a name="l00133"></a>00133 
<a name="l00134"></a>00134         <span class="keyword">const</span> <a class="code" href="classQVImage.html" title="Image representation class for the QVision.">QVImage&lt;sShort,3&gt;</a> sShortImage = image;
<a name="l00135"></a>00135         <span class="keyword">const</span> <a class="code" href="classQVImage.html">QVImage&lt;uChar,3&gt;</a>  sShortImageOrig = sShortImage;
<a name="l00136"></a>00136         Q_ASSERT_X(image == sShortImage, <span class="stringliteral">&quot;test type conversion&quot;</span>, <span class="stringliteral">&quot;Conversion with type sShort failed.&quot;</span>);
<a name="l00137"></a>00137 
<a name="l00138"></a>00138         <span class="keyword">const</span> <a class="code" href="classQVImage.html" title="Image representation class for the QVision.">QVImage&lt;uShort,3&gt;</a> uShortImage = image;
<a name="l00139"></a>00139         <span class="keyword">const</span> <a class="code" href="classQVImage.html">QVImage&lt;uChar,3&gt;</a>  uShortImageOrig = uShortImage;
<a name="l00140"></a>00140         Q_ASSERT_X(image == uShortImage, <span class="stringliteral">&quot;test type conversion&quot;</span>, <span class="stringliteral">&quot;Conversion with type uShort failed.&quot;</span>);
<a name="l00141"></a>00141 
<a name="l00142"></a>00142         <span class="comment">// -------------------------------------------------</span>
<a name="l00143"></a>00143         <span class="comment">// Test: pixel access</span>
<a name="l00144"></a>00144         <a class="code" href="classQVImage.html">QVImage&lt;uChar, 3&gt;</a> imageBis(image.<a class="code" href="classQVImage.html#ad0f2758702ee4d96d538aa353ae81bb7" title="Overloaded function from QVGenericImage::getCols().">getCols</a>(), image.<a class="code" href="classQVImage.html#a55e71ad628f450ee82bb4226cb62ec17" title="Overloaded function from QVGenericImage::getRows().">getRows</a>());
<a name="l00145"></a>00145         <span class="keywordflow">for</span>(uInt i = 0; i &lt; image.<a class="code" href="classQVImage.html#a55e71ad628f450ee82bb4226cb62ec17" title="Overloaded function from QVGenericImage::getRows().">getRows</a>(); i++)
<a name="l00146"></a>00146                 <span class="keywordflow">for</span>(uInt j = 0; j &lt; image.<a class="code" href="classQVImage.html#ad0f2758702ee4d96d538aa353ae81bb7" title="Overloaded function from QVGenericImage::getCols().">getCols</a>(); j++)
<a name="l00147"></a>00147                         {
<a name="l00148"></a>00148                         imageBis(j,i,0) = image(j,i,0);
<a name="l00149"></a>00149                         imageBis(j,i,1) = image(j,i,1);
<a name="l00150"></a>00150                         imageBis(j,i,2) = image(j,i,2);
<a name="l00151"></a>00151                         }
<a name="l00152"></a>00152 
<a name="l00153"></a>00153         imageBis.setROI(image.<a class="code" href="classQVGenericImage.html#a55132f8ba36904516dcf384039c670e4" title="Method for obtaining actual region of interest for image.">getROI</a>());
<a name="l00154"></a>00154         Q_ASSERT_X(image == imageBis, <span class="stringliteral">&quot;test pixel access&quot;</span>, <span class="stringliteral">&quot;First pixel access test failed.&quot;</span>);
<a name="l00155"></a>00155         }
<a name="l00156"></a>00156 
<a name="l00157"></a>00157 <span class="keywordtype">int</span> main(<span class="keywordtype">int</span> argc, <span class="keywordtype">char</span> *argv[])
<a name="l00158"></a>00158         {
<a name="l00159"></a>00159         <span class="comment">// Check if the user provided enough command line parameters.</span>
<a name="l00160"></a>00160         <span class="keywordflow">if</span> (argc &lt; 2)
<a name="l00161"></a>00161                 {
<a name="l00162"></a>00162                 std::cout &lt;&lt; <span class="stringliteral">&quot;Usage: &quot;</span> &lt;&lt; argv[0] &lt;&lt; <span class="stringliteral">&quot; &lt;path to input images&gt;&quot;</span> &lt;&lt; std::endl;
<a name="l00163"></a>00163                 <span class="keywordflow">return</span> -1;
<a name="l00164"></a>00164                 }
<a name="l00165"></a>00165 
<a name="l00166"></a>00166         <span class="keywordtype">int</span> num_images = 0;
<a name="l00167"></a>00167         <span class="keyword">const</span> QDir imagesDir(argv[1]);
<a name="l00168"></a>00168         <span class="keyword">const</span> QStringList files = imagesDir.entryList(QDir::Files|QDir::Readable);
<a name="l00169"></a>00169         <span class="keywordflow">foreach</span> (QString file, files)
<a name="l00170"></a>00170                 {
<a name="l00171"></a>00171                 <span class="comment">// Read the input file.</span>
<a name="l00172"></a>00172                 <a class="code" href="classQVImage.html">QVImage&lt;uChar, 3&gt;</a> image;
<a name="l00173"></a>00173                 <a class="code" href="group__qvip.html#ga59a032b0b1c38254a95e383a39bf33a0" title="Reads the content of a QVImage (RGB) object from an image file.">readQVImageFromFile</a>(QString(argv[1]) + <span class="stringliteral">&quot;/&quot;</span> + file, image);
<a name="l00174"></a>00174 
<a name="l00175"></a>00175                 <span class="comment">// If it contains an image, perform tests on it.</span>
<a name="l00176"></a>00176                 <span class="keywordflow">if</span> (image.<a class="code" href="classQVImage.html#ad0f2758702ee4d96d538aa353ae81bb7" title="Overloaded function from QVGenericImage::getCols().">getCols</a>() != 1 and image.<a class="code" href="classQVImage.html#a55e71ad628f450ee82bb4226cb62ec17" title="Overloaded function from QVGenericImage::getRows().">getRows</a>() != 1)
<a name="l00177"></a>00177                         {
<a name="l00178"></a>00178                         <span class="comment">// Do tests for the image.</span>
<a name="l00179"></a>00179                         std::cout &lt;&lt; <span class="stringliteral">&quot;Testing image &quot;</span> &lt;&lt; (num_images++) &lt;&lt; <span class="stringliteral">&quot; &#39;&quot;</span> &lt;&lt; qPrintable(file) &lt;&lt; <span class="stringliteral">&quot;&#39;. Size (&quot;</span> &lt;&lt; image.<a class="code" href="classQVImage.html#ad0f2758702ee4d96d538aa353ae81bb7" title="Overloaded function from QVGenericImage::getCols().">getCols</a>() &lt;&lt; <span class="stringliteral">&quot;, &quot;</span> &lt;&lt; image.<a class="code" href="classQVImage.html#a55e71ad628f450ee82bb4226cb62ec17" title="Overloaded function from QVGenericImage::getRows().">getRows</a>() &lt;&lt; <span class="stringliteral">&quot;)&quot;</span> &lt;&lt; std::endl;
<a name="l00180"></a>00180                         doTests(image);
<a name="l00181"></a>00181                         }
<a name="l00182"></a>00182                 }
<a name="l00183"></a>00183         <span class="keywordflow">return</span> 0;
<a name="l00184"></a>00184         }
<a name="l00185"></a>00185 
</pre></div></div>
</td></tr></table>

<br /><hr><br />
<center><a href="http://perception.inf.um.es/QVision">QVision framework</a>.
<a href="http://perception.inf.um.es">PARP research group</a>.
Copyright &copy; 2007, 2008, 2009, 2010, 2011.</center>
<br />
</body>
</html>
